=== HTTP code : 200 ===

HTTP/1.1 200 OK
Server: nginx/1.4.6 (Ubuntu)
Date: Wed, 08 Apr 2015 06:01:11 GMT
Content-Type: application/pdf
Content-Length: 475292
Last-Modified: Thu, 19 Sep 2013 22:39:51 GMT
Connection: close
ETag: "523b7d37-7409c"
Accept-Ranges: bytes


Link is valid.